372 REPORT—1890. 
Above tests were taken at different levels, so are not very suitable for 
comparison. The last 175 feet of the boring appears to have added 
nothing to the supply. 
The boring was carried to a depth of 575 feet, and yielded water of 
good quality, but in the last 10 feet, under the 79 feet of marl, an alkaline 
water was met with, which, when first tapped, was found by Mr. A. 
Timmins, A.I.C.E., F.G.S., to contain— 
Grains. 
Total solids per gallon : : : 5 : 2 e . 561:05 
Sulphuric anhydride . 5 2 : : 2 5 : «| 299°91 
Lime . : : 5 ; 5 . . é : . . 37:80 
Magnesium 3 : 2 5 0 > 3 - : . 12:09 
Combined chlorine. . 5 : - 2 : : . 66:10 
The following analysis gives further details of the alkaline water after 
it had been flowing a short time :— 
Results of the Analysis of a sample of Water received from Coventry at the 
laboratory of the London Hospital Medical College, Whitechapel, London, 
on March 16, 1888, and contained in a Winchester quart bottle, duly 
sealed and secured. By Dr. Mrymorr Tivy. 
(The results are stated in grains per imperial gallon of 70,000 grains, the organic 
carbon and nitrogen being stated in parts per 100,000.) 
Nitrogen Oxygen 
Total in required to O ie \-Oneame Li 
Solid | Ammonia | Nitrates +} =Nitric Acid] Oxidise the ea UAE me. 
Matter and Organic arbon | Nitrogen| (CaQ) 
Nitrites Matter 
—— ee 
Grains Grains Grains Grains Part per 100,000 Grains 
557°80 0:070 | 0:083N in 0°373 NHO, 0 0041 | 0-036 43°98 
Sulphur} Hardness 
Magnesia BAPE ~___ { Common as 
(MgO) 7 ae CRlonee { Salt Before After | 
a Boiling Boiling : 
Grains Grains Grains 5 4 
13:49 260°0 82°368 = 134:99 106°3 25°4 Silica, 1:04 
POssIBLE COMPOSITION. 
Carbonates of lime and magnesia . : : : : fe ecO 
Sulphates of lime and magresia . : : : 7 pote Oe, 7 
Alkaline sulphates - : : 4 5 : . 800:0 : 
Silica . : ; : 3 : t : : ; : : 1:0 ' 
Organic matter . : : 2 ; : 5 : , 3 0:0 j 
Nitrate of magnesia . 5 é 5 4 : , : 0-5 
Chloride of sodium. : : : : - : 5 Be ey a) i 
Doo. 4 
Actually found ; : : 7 1657-8 i] 
Through the kindness of Mr. F. G. Meacham, M.E., of the Hamp-— 
stead Colliery, Great Barr, near Birmingham, the specimens preserve 
from their sinking-pit have been examined by your reporter. Of th 
section passed through, 150 feet of white sandstone overlie Permian re 
sandstone marls and conglomerate like those of Spon End, which ter 
